Bracket sign (pericallosal lipoma)
Last revised by Frank Gaillard on 26 Jul 2024
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Citation:
Gaillard F, Elfeky M, Fortin F, et al. Bracket sign (pericallosal lipoma). Reference article, Radiopaedia.org (Accessed on 06 Oct 2024) https://doi.org/10.53347/rID-9475
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9475
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At the time the article was created Frank Gaillard had no recorded disclosures.
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At the time the article was last revised Frank Gaillard had no financial relationships to ineligible companies to disclose.
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The bracket sign refers to a radiographic appearance seen with the tubulonodular variety of pericallosal lipoma. It reflects calcification seen at the periphery of the midline lipoma. It is best seen on coronal imaging and historically was identified on frontal radiographs.
It should not be confused with the bracket sign of the pars marginalis.
References
- 1. Rao AS, Rao VR, Mandalam KR et-al. Corpus callosum lipoma with frontal encephalocele. Neuroradiology. 1990;32 (1): 50-2. - Pubmed citation
- 2. Ho M, Eisenberg RL. Neuroradiology Signs. McGraw-Hill Professional. ISBN:B00JFG70IA. Read it at Google Books - Find it at Amazon
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